(Solved):
14. Consider a medium PRF radar on board an aircraft moving at a speed of \( ...
???????
14. Consider a medium PRF radar on board an aircraft moving at a speed of \( 350 \mathrm{~m} / \mathrm{s} \) with PRFs \( f_{r 1}=10 \mathrm{kHz}, f_{r 2}=15 \mathrm{kHz} \), and \( f_{r 3}=20 \mathrm{kHz} \); the radar operating frequency is \( 9.5 \mathrm{GHz} \). Calculate the frequency position of a nose-on target with a speed of \( 300 \mathrm{~m} / \mathrm{s} \). Also calculate the closing rate of a target appearing at 6,5 , and \( 18 \mathrm{kHz} \) away from the center line of PRF 10, 15, and \( 20 \mathrm{kHz} \), respectively.